Full text of "Balfour rolling doors"

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-completely automatic

.operation by remote control
— rapid operation
_reduced heat losses

_thrifty-low first cost

-minimum maintenance

-effortless operation

-wide size range availability

.quiet working

-Inside-outside operation

.easily concealed operator

space saver—minimum side room
-lowest cost

-excellent balance

■ power operated service doors

■ chain operated service doors

■ crank operated service doors

■ push-up service doors

type N40

interior face mounted
operator on bracket

ndex

installation clearances

condensed specifications

slat details

guide details

standard specifications

optional materials
and accessories

16 g

pages 4- 5
pages 6- 7
page 6
page 7
pages 8- 9

pages 10-11

type N40

interior face mounted
operator on wall,

type 0T40

exterior face mounted s,
operator on inside

type N20

interior face mounted

type J20

between jamb mounted

type 0T20

exterior face mounted

> type N30

interior face mounted

type J30

between jamb mounted

type 0T30

exterior face mounted

type NIO

interior face mounted

type JIO

between jamb mounted

type OIO

exterior face mounted

Walter Balfour & Co.. Inc. 3

opening height in feel

service door
installation

note: 1

push-up

type NIO

face mounted

push-up
type JIO

data on pages 4, 5, 6, 7, 8 and 9 apply
to doors of BALFOUR STANDARD SPECIFICA¬
TIONS.

consult with Home Office on doors with spe¬
cial features such as shown on pages 10 and 11.
push-up doors are not recommended for open¬
ings above 100 square feet.

chain
type N20

clearances [dimensions in inches]

area

number

area

number

5>/4

133/4

23/ 4

133/4

■ selection Chart rail required clearances are keyed 1

Lto area numbers on this chartJ

0 5 10 15 20 25 30

opening width in feet

area

numbers

6V2

133/4

14%

16%

lSy 4

18%

20'%

53/ 4

14%

16%

181/4

18%

20'%

6V2

22 %

7'h

25%

18%

9 %

20'%

7 %

22%

251/4

18%

20’%

22%

251/4

service doors

chain
type J20

crank
type N30

16 g

motor
type N40

jamb mounted

face mounted

* motor units are wall mounted

area

numbers

area

numbers

area

numbers

23/ 4

14V.

sy 4

7'/4

14%

sy 4

14%

23/ 4

14'/.

5y 4

7'/,

14'/.

sy 4

14%

16%

I8I/4

16%

isy 4

18%

20’%

20'%

«%

14'/.

53/4

73/4

141/s

53/4

14%

16%

18'/,

B'/2

16%

18%

16%

I81/4

18%

B'/2

18%

83/4

20’%

8i/ 2

20'%

81/4

22y 8

225/8

225/s

81/4

251/4

—

»%

81/2

18%

—

20’%

*13

20'%

—

225/8

*14

225/s

—

91/2

81/2

251/4

25%

—

*16

2*5

—

20'%

*17

20'%

—

20%

*18

20’%

—

225/s

*19

225/ 8

—

25%

*20

251/4

continued

-►

Walter Balfour A Co., Inc

specifications

push-up

type NIO
face mounted

push-up

type JIO

jamb mounted

chain

type N20
face mounted

■ specifications

type number NIO

Doors shall be type NIO conforming to
Balfour standard specifications, or approved
equal. Curtains shall be cold rolled steel
having 1.25 oz. pure zinc coating per sq. ft.
of flat metal as per ASTM A93-52T. Slats
shall be bonderized for paint adhesion.
Counterbalance shall be of helical torsion
springs housed in steel pipe and anchored
to single torsion rod. Pipe deflection shall
be .03" per ft. maximum. Guides and brack¬
ets shall be of steel. Hood shall be 24 U. S.
gauge sheet metal. Non-galvanized ferrous
surfaces shall have a shop coat of paint.
Guarantee shall apply to defective materials
and workmanship for a period of one year.

■ construction details

type JIO

Doors shall be type JIO conforming to
Balfour standard specifications, or approved
equal. Curtains shall be cold rolled steel
having 1.25 oz. pure zinc coating per sq.
ft. of flat metal as per ASTM A93-52T. Slats
shall be bonderized for paint adhesion.
Counterbalance shall be of helical torsion
springs housed in steel pipe and anchored
to single torsion rod. Pipe deflection shall
be .03" per ft. maximum. Guides and
brackets shall be of steel. Hood shall be
24 U.S. Gauge sheet metal. Non-galvanized
ferrous surfaces shall have a shop coat of
paint. Guarantee shall apply to defective
materials and workmanship for a period of
one year.

type N20

Doors shall be type N20 conforming to
Balfour standard specifications, or approved
equal. Curtains shall be cold rolled steel
having 1.25 oz. pure zinc coating per sq.
ft. of flat metal as per ASTM A93-52T. Slats
shall be bonderized for paint adhesion.
Counterbalance shall be of helical torsion
springs housed in steel pipe and anchored
to single torsion rod. Pipe deflection shall
be .03" per ft. maximum. Guides and
brackets shall be of steel. Hood shall be 24
U.S. gauge sheet metal. Non-galvanized
ferrous surfaces shall have a shop coat of
paint. Guarantee shall apply to defective
materials and workmanship for a period of
one year.

slat-guide selection chart

slat

■MHR9H

chain
type J20

crank
type N30

16g

motor
type N40

jamb mounted

face mounted

type J20

Doors shall be type J20 conforming to Bal¬
four standard specifications, or approved
equal. Curtains shall be cold rolled steel hav¬
ing 1.25 oz. pure zinc coating per sq. ft. of
flat metal as per ASTM A93-52T. Slats shall
be bonderized for paint adhesion. Counter¬
balance shall be of helical torsion springs
housed in steel pipe and anchored to single
torsion rod. Pipe deflection shall be .03" per
ft. maximum. Guides and brackets shall be
of steel. Hood shall be 24 U.S. gauge sheet
metal. Non-galvanized ferrous surfaces shall
have a shop coat of paint. Guarantee shall
apply to defective materials and workman¬
ship for a period of one year.

guides

type N30

Doors shall be type N30 conforming to Bal¬
four standard specifications, or approved
equal. Curtains shall be cold rolled steel
having 1.25 oz. pure zinc coating per sq. ft.
of flat metal as per ASTM A93-52T. Slats
shall be bonderized for paint adhesion.
Counterbalance shall be of helical torsion
springs housed in steel pipe and anchored
to single torsion rod. Pipe deflection shall
be .03" per ft. maximum. Guides and
brackets shall be of steel. Hood shall be
24 U.S. gauge sheet metal. Non-galvanized
ferrous surfaces shall have a shop coat of
paint. Guarantee shall apply to defective
materials and workmanship for a period of
one year.

type N40

Doors shall be type N40 conforming to Bal¬
four standard specifications, or approved
equal. Curtains shall be cold rolled steel
having 1.25 oz. pure zinc coating per sq. ft.
of flat metal as per ASTM A93-52T. Slats
shall be bonderized for paint adhesion.
Counterbalance shall be of helical torsion
springs housed in steel pipe and anchored
to single torsion rod. Pipe deflection shall
be .03" per ft. maximum. Guides and
brackets shall be of steel. Hood shall be 24
U.S. gauge sheet metal. Motor operator shall
be of sufficient capacity, shall have emer¬
gency chain operation with safety mechani¬
cal electrical interlock, rotary type limit
switch, and shall be furnished with 3 but¬
ton push button station and magnetic revers¬
ing starter. Non-galvanized ferrous surfaces
shall have a shop coat of paint. Guarantee
shall apply to defective materials and work¬
manship for a period of one year.

Z type guide

Z type guide is method for
connection to masonry or
wood jambs

E type guide

E type guide is method for
connection to steel or alter¬
nate for wood jambs

-f

‘T

, 1 o

-v-

*-B

area

number

guide

gage

dimensions in inches

G-2

3y 2

0-2 y 2

5%t

GS-2%

GL-3

iy 8

G-3

6, 7

0-3%

4 3/ 4

3y 2

iy 8

GW-3

43/ 4

3 y 4

1 %

GW-3%

43/ 4

3y 2

1 %

GW-4

33/4

Walter Balfour & Co., Inc. 7

standard specifications

continuous t<

ill bearing

latically

of the nut and the frc
bellmouth comes off.
curtain may now slip
out of guides to be
repaired

8.3 barrel

8.4 spring counterbalance

8.5 brackets

8.1 general Doors shall be of the service type Rolling Steel Doors,
mounted (on the face of the wall) (between the Jambs), and shall be'
operated by (hand by means of handles placed on the bottom bar) (end¬
less chain) (hand crank) (motor connected to speed reducer). The doors
shall be as manufactured by Walter Balfour & Co., Inc., 404 Oakland St.,
Brooklyn, N. Y., or approved equal.

8.2 curtain The curtain shall consist of interlocking slats assembled
to present a water shedding surface on the weather side, bottom bar
made of two steel angles of size sufficient to add rigidity to curtain. The
curtain shall be provided with malleable iron endlocks, fastened to alter¬
nate slats by means of two rivets per lock. Locks shall prevent slats from
moving laterally and from wearing at surfaces riding in guides. Curtains
over 340 sq. ft. in area but not less than 20y 2 ft. in width, and all cur¬
tains above 24 ft. in width shall be provided with malleable iron wind-
locks riveted to slats with three rivets per lock and spaced at 2 ft
interval along the curtain height. The slats shall be of open hearth copper
bearing cold rolled steel, hot dipped galvanized before being formed,
shall be free from sharp bends and conform to the following:

opening

size

slat

type

metal gage
U.S.G., min.

metal
thickness
nominal in.

slat
width
min., in.

depth of
corrugations
min., in.

refer to

“S”-20

.036

chart on

“L”-20

.036

page 6

“L"-l 8

.050

Galvanized coating shall be one and one-quarter ounces of high grade
zinc per sq. ft. of flat metal, shall be free from blisters and imperfections
and shall conform to ASTM Standards Serial Designation No. A93-52T.
All galvanized slats shall be treated with a hot balanced zinc phosphate
solution containing nitrate and rinsed first in clear water, then in a mild
chromic acid solution, and then dried to provide lasting paint adhesion.

8.3 barrel The barrel shall be a steel pipe whose deflection under
load shall not exceed 0.03 inch per ft. of span, shall have on each end
a steel plug welded to it so as to eliminate failures characteristic of
pinned or screwed plugs, and shall be equipped, whenever allowed by
the design, with spiral shaped cast iron rings which will provide for easy
and silent operation. The rings shall have a cavity on the surface formed
to accommodate the top slat of curtain.

8.4 spring counterbalance The curtain shall be counterbalanced

at every point in its travel by means of helical torsion springs placed
inside the barrel and fixed on each end to anchors, designed to prevent
internal collapsing of springs at contact points. The anchors shall transfer
the full spring load to a single torsion rod equipped with a balancing
wheel placed on the outside of one of the brackets. Wheel shall be used
to apply the initial spring load, and to hold the torsion rod fixed. Springs
shall be of tempered steel wire, cold formed and heat treated in a manner
so as to retain the most desirable residual stress.

8.5 brackets The brackets shall be made of steel plate, shall be
connected to the guides to form a single structural element, and shall have
the inside surface flush with guide groove. Each bracket shall be provided
with two bellmouths flush mounted with guide groove. The front bell-
mouths shall be removable to permit rapid sectional installation and re¬
placement of curtain.

8.6 guides Guides shall be of structural steel angles, and shall be
constructed in accordance with Chart and details on Pages 6 and 7.

ioc q

" ”■ . v..n

9*1 locking devices Provision for padlocking shall be made as
follows: push-up doors shall have slide bolts on the bottom bar. Chain
doors shall have chain holder on the operator side guide. Crank doors
shall have disk on operating shaft.

9.2 Cronk box Crank box for crank doors shall consist of cut tooth
steel bevel gears, self-lubricating bronze sleeve bearings, and weather
sealed, shock proof, malleable iron housings.

9.3 motor operator units Each unit shall consist of a motor,
directly connected to a speed reducer by means of flexible coupling, a
solenoid activated clutch-brake, a limit switch and an endless chain for
emergency operation. All electrical equipment shall conform to NEMA
standards. The motor shall be of high starting torque and of sufficient
capacity to operate the door at a speed not less than % of a foot per
second, shall be suitable for operation on the current characteristics
available at place of installation, and shall have overload protection.
Each unit shall be provided with a magnetic across the line starter hav¬
ing thermal overload protection, and unless otherwise specified shall be
equipped with push buttons marked "Open,” "Close,” and "Stop.”
The limit switch shall be of the adjustable screw type, and shall be so
mounted as not to have its timing affected when the door changes from
motor to manual operation. The speed reducer shall be of the worm
gear type, completely housed and running in an oil bath, shall have
special nickel phosphor bronze hobbed worm gear and special steel cut
worm, shall satisfy the AGMA Standards, and shall be of sufficient ca¬
pacity for the use intended. Emergency operation shall be through
auxiliary hand chains extending to a point easily accessible from the
floor, and mounted not to protrude more than 12" all along the wall.
Drive from reducer to door shaft shall be through roller chain oper¬
ating on cut tooth steel sprockets. Each unit shall be provided with
electric interlock so the motor cannot be started when door is being
operated by hand, and shall be constructed so manual operation may
be effected even when motor is disconnected from the unit. Note: Elec¬
tric wiring, and conduit for hooking up motor operator unit and all
other electrical equipment not covered by this paragraph shall not be
furnished by the door manufacturer.

9.4 bearings All motor operated doors and all doors over 200 sq.
ft. in area shall have self-aligning precision ball bearings of sealed
cartridge type. Other doors shall be equipped with self-aligning, self-
lubricating bronze sleeve bearings.

9.5 gears Gears, . . ., except those which are part of the motor
unit, shall be of high tensile gray iron castings conforming to Federal
Specification QQ-1-652, and shall be made from machine cut patterns.

9.6 hoods Hoods shall be made of hot dipped galvanized sheet
metal not lighter than 24 U.S. gauge, shall be formed to contour the sup¬
porting brackets, and shall have stiffening beads or flanges. Hoods for
openings 18 ft. or more in width shall have intermediate supporting
brackets.

9.7 workmanship Workmanship shall be of the highest grade
and in accordance with the best practice for this type of equipment.

9.8 painting All ferrous metal surfaces (except faying surfaces,
work parts of machinery, galvanized surfaces and other surfaces not
normally painted in good commercial practice) shall receive one coat
of rust inhibitive metal primer.

9.9 erection Erection shall conform to the Standards of Walter
Balfour & Co., Inc., and shall be done by the company representatives.

9.10 guarantee Doors shall be guaranteed against defective ma¬
terials and workmanship for a period of one year.

A patented

16 g

Walter Balfour A Co., Inc. 9

optional materials and accessories

DELIA slats | .. .

ALASTOR slats J spec " fi cat.ons

10.1 DELIA and ALASTOR are interlocking extruded aluminum slats
formed so that a suspended curtain will lie in a vertical plane, presenting
on the outside a flat surface with sharp, straight, uniformly spaced edges,
and on the inside a seemingly single ribbed sheet of impressive lines.
Balfour has originated these slats for architectural applications of higher
order, where both strength and decorative expression are required. Slat
material is 63S-T6 aluminum. Size and gauge are as shown on the
left. Finish is either mill finish or a dense, thick alumilite coating for
protection against weathering and wear. Coating may be plain or
colored such as architectural gray, gold or black.

10.2 Standard shape slats “S” and "L" slats are cold rolled
interlocking slats of dimensions as shown on the left. Slat material may
be as follows:

(1) Armco Aluminized Steel, Type 2. This is recommended where strong
protection against corrosion is required and yet no paint is used.
Aluminized steel possesses the strength of steel; has at least 3 times
the corrosion resistance of a galvanized sheet with commercial weight
zinc coating; requires no painting; resists higher temperatures and
longer heat exposure than galvanized steel. The "S” slat is available
in 20 U.S. gauge, and the “L" slat in 20 and 18 U.S. gauges.

(2) 52 S-H 32 Aluminum in mill finish. Aluminum slats are used where
weight and surface properties are a consideration. Slat thickness
is .040" for the “S” slat, and .051" & .065" for the “L" slat.

(3) 302 Stainless steel in #2 mill finish. This is intended for architectural
applications or for satisfying requirements of particular atmospheres.
The "S” slat is furnished in 20 U.S. gauge. The "L" slat in 20 and
18 U.S. gauges.

(4) Galvanized steel in 16 U.S. gauge. This is used for excessively
wide openings, and for openings in localities where wind load re¬
quirements are abnormally high. Galvanized coating is 1.25 oz.
zinc per sq. ft. of flat metal as per ASTM A93-52T.

10.3 guides and hoods Guides and hoods may be furnished in
aluminum and in stainless steel.

10.4 vision panel Vision panel is a window applied to the
curtain to enable to see and to admit light. Panel is approximately 18"
x 18" and consists of %" thick plexiglass strips mounted on slats with
weatherproof connections. Plexiglass is of the colorless, transparent
type with high impact and weather resistance.

10.5 safety bottom bar Safety bottom bar is a safety device

applied to the bottom bar by means of which a power operated curtain
may either stop as it is moving downward or reverse its travel and
return to its fully open position. Safety bar consists of a 7 x 7 stainless
steel aircraft cable extending the full length of the bottom bar and
housed in a neoprene weatherseal connected to bottom bar. Cable
operates a switch located on the bottom bar and forming part of the
control circuit. Cable is mounted to remain sensitive to any minimum
force applied to it from any direction.

miiMummimw

)

11.1 baked on enamel Curtains which require painting are
furnished with 2224 Grey vinyl forming enamel coating applied prior to
roll forming. This coating resists the action of water, weather and chemi¬
cals. Salt spray tests have shown that this coating practically doubles the
corrosion resistive life of a galvanized surface.

11.2 weatherstripping Various provisions are available to
secure higher resistance against air infiltration and more effective
weatherseal. These may be used individually or in combination as required.

11 .2.1 internal header baffle Internal header baffle is
a hinged 24 gauge galvanized sheet metal cover resting on curtain coil
at all times and preventing air passage between hood and curtain coils.

11 .2.2 external header baffle This baffle consists of a
galvanized sheet metal closure piece sealing the gap between curtain
and lintel. The sheet metal piece has a neoprene strip fastened along
the edge contacting the curtain.

1 1.2.3 Continuous baffled endlocks Baffled endlocks are

of malleable iron and have a rib on the concave side to provide a
continuous contacting edge between curtain and guide. Locks are riveted
to each slat by means of two rivets per lock.

1 1.2.4 guide brake lining Brake lining consists of .020"
thick spring phosphor bronze strip and thick woven brake lining

mounted in guide groove. This arrangement together with the baffled
endlocks is most effective against air infiltration.

11.2.5 bottom bar seal type I Seal Type I consists of a
neoprene loop suspended between the two bottom bar angles.

11 .2.6 bottom bar seal type II Seal type II is an arrange¬
ment achieved by stepping the bottom bar angles.

11.3 locking devices Motor operated doors may have key-
operated push button stations and a padlocking chain holder on the
operator side guide for locking emergency chain.

11.4 windlocks Windlocks are available as an optional item on
curtains not covered by Balfour standard service door specifications.

11.5 wicket door Wicket door is a built-in pass door which

allows convenient access to the building. The door is Kalamein type,
with 4" x 4" butt hinges, and is provided with a tubular cylinder lock

set. Door frame is steel and is hinged on main door guides.

1 1 .6 mullions At times excessively wide doors may not be prac¬
tical, yet the entire, free width of the opening must be available for

use. In such cases multiple doors still may be installed, provided the

adjacent door guides are built into either a removable mullion or a
sliding mullion. A removable mullion has limitations imposed by its
weight. A sliding mullion is easily operable, and is furnished with a
roller carriage and track consisting of a steel beam. Both mullions have
provisions for being locked in place when functioning as door guides.

Walter Balfour & Co., Inc. 11

16g

fire doors provide
your building with

AUTOMATIC DOORS

(self closing)

P/2 HOUR
CLASS B I

vertical shafts

door furnished
With UNDERWRITERS'
CERTIFICATES

3 HOUR
CLASS A
fire walls

% HOUR
CLASS C
corridors

door

furnished

with

UNDERWRITERS'

LABEL

V/l HOUR
CLASS 0
exterior walls

1012

opening width in feet

type UN40
power operated

interior face mounted operator
on wall

type UN20
chain operated

interior face mounted

note: this door is in accordance
with UNDERWRITERS’
STANDARDS but cannot
be furnished with
UNDERWRITERS’ LABEL

N. Y. CITY BOARD OF STANDARDS
and APPEALS

UNDERWRITERS' LABORATORIES, INC.

FACTORY MUTUALS

UNDERWRITERS' STANDARDS

■■■■■■hhmhhmhJ

I -

--,

anchor bolts shall extend through the
wall. Local authorities may allow guide
bolts only to be tapped into steel jambs

AUTOMATIC or NON-AUTOMATIC DOORS
(self-closing) (not self-closing)

type UN30
crank operated

interior face mounted

type UNIO
push-up

interior face mounted

ndex

standard specifications

standard specifications
installation clearances
window fire shutter

16 g

page 13
pages 14-15
pages 14-15

13.1 general Fire Doors shall be (automatic) (non-automatic),

Class -, and shall have (chain) (crank) (push up) type operation.

Doors shall be furnished with Underwriters’ (Label) (Certificate) and shall
be as manufactured by Walter Balfour & Co., Inc.

1 3.2 Curtain Curtain shall consist of roll formed interlocking steel
slats, bottom bar made up of two steel angles and steel reinforced top
slat. Slats shall be not lighter than 20 U.S. gauge, hot dipped gal¬
vanized with 1.25 ounce per sq. ft. zinc coating conforming to A93-52T
of the ASTM. Curtain shall be provided with endlocks as required by
the Underwriters’, and with two stoplocks located so that curtain will
retain its full closed position in case of relaxation of springs under fire.

13.3 Spring counterbalance Counterbalance shall consist of
oil tempered and heat treated steel helical torsion springs housed in
steel pipe. Springs shall be anchored to a torsion rod extending the
full length of springs. Torsion rod shall have fixed on it a single bal¬
ancing wheel placed on the outside of one of the brackets. Steel pipe
shall not exceed 0.03" per ft. deflection, and shall have cast iron rings
fastened to it.

1 3.4 brackets Brackets shall be of steel plate.

1 3.5 guides Guides shall be minimum structural steel angles
assembled with provision for expansion.

1 3.6 bearings Bearings shall be lubricated-for-life self-aligning
ball bearings.

1 3.7 Hood Hood shall be galvanized sheet metal, 24 gauge minimum.

13.8 baffle Baffle shall be 24 gauge sheet metal. Normally it
shall be held away from the coil. Upon temperature rise it shall close
on the coil thus preventing passage of flame or smoke.

13.9 automatic closing devices Devices shall consist of
adjusting-release mechanism actuated by fusible links and coordinated
with governor. Mechanism shall force curtain downward and permit
lifting of the curtain by hand after automatic drop, and again allow
automatic closure after emergency exit.

13.10 governor Governor shall be escapement type capable of
limiting curtain drop to an even slow speed to avoid injury and impact.
Governor shall be inoperative when door is in normal operation.

13.1 1 painting Painting shall consist of a shop coat of rust in¬
hibiting primer applied to ferrous surfaces,

13.12 erection Erection shall be done by Walter Balfour & Co.,
Inc. or its representative.

13.13 guarantee Guarantee shall cover defective material and
workmanship for a period of one year.

Walter Balfour & Co.. Inc. 13

fire door

installation clearances

push-up
type UNIO

push-up
type UJIO

note: 1 data on pages 14 and 15 apply to doors
for interior location only.

2 consult with Home Office on doors for
exterior walls and power operated doors.

3 push-up doors are not recommended for
openings above 80 square feet.

chain

type UN2Q

face mounted

jamb mounted

face mounted

■ Clearances [dimensions in inches]

area

numbers

area

numbers

13%

14%

7Vb

13%

171/2

71/s

13%

14%

sy 8

13y 2

171/2

area

numbers

13%

143/4

7 %

13%

143/4

7 %

13%

143/4

16%

173/4

16%

173/4

16%

173/4

11%

19%

11%

19%

11%

20%

11%

20%

11%

22%

11%

22%

window fire shutter

specifications

The specifications for the Balfour fire door shall apply to the Balfour fire shutter except
as herein modified:

Governor shall remain operative at ail times.

b Shutter shall be provided with test release chain, mechanism resetting chain and
gearless rewinding mechanism. These devices shall permit, respectively, to test curtain
drop, reset dropping mechanism and crank curtain to its fully open position.

fire doors

chain
type UJ20
jamb mounted

crank
type UN30
face mounted

crank
type UJ30

jamb mounted

area

numbers

area

numbers

area

numbers

13%

17%

6Va

13%

143/4

7 %

13%

17%

9 %

13%

17%

s y 2

13 5 /s

143/4

13%

17%

13%

17%

13%

143/4

13%

17%

7 5 /8

19%

16%

173/4

19%

8Vs

9 %

19%

16%

173/4

19%

85/s

19%

7 5 /a

16%

173/4

19%

11%

19%

11%

19%

11%

203/ 8

20%

11%

203/ 8

11%

20%

11%

22%

11%

22%

11%

22%

® underwriters’ labeled

Walter Balfour & Co., Inc.

■ 16.2 curtain
16.3 bottom bar

extruded

aluminum

slat

security

lock

flush type
handle

inner sliding
locking bolt

extruded
aluminum
bottom bar
streamlined
and balanced

extruded
rubber astragal
securely held
in place

16.1 Doors shall be of the aluminum Pygmee type Roll¬
ing Doors mounted (on the face of the wall) (between jambs) and shall
be (push-up) (crank) operation. Doors shall be as manufactured by
Walter Balfour & Co., Inc.

16.2 curtain Curtain shall consist of extruded aluminum slats not

less than .048" thick and having a width of 1%" and crown depth
°f Slat extremities shall be provided with cadmium plated end-

locks every second slat and cadmium plated security endlocks every
sixth slat.

16.3 bottom bar Bottom bar shall be of extruded aluminum hav¬
ing a hollow rectangular cross-section, and shall be provided with
inside located sliding locking bolts, held-in-groove (not glued) extruded
rubber astragal, and recessed flush type aluminum handles.

A patent pending

17.1 guides

17.5 crank operator

17.2 spring
counterbalance

17.7 guarantee

pygmee doors

A 17*1 guides Guides shall be of the boxed-in frame type made
of extruded aluminum and containing security curtain retaining groove
to prevent curtain from being pulled out of guides. Guide groove shall
have a continuous nylon strip to prevent slat wear and decrease curtain
friction.

17.2 spring counterbalance Counterbalance shall consist of
oil tempered and heat treated steel helical torsion springs housed in
steel pipe. Springs shall be anchored to a torsion rod extending the
full length of the springs and having fixed on it a balancing wheel
located on interior with respect to bracket. Steel pipe shall not exceed
0.03" per ft. deflection, and shall have felt faced cast iron rings fastened
to it.

1 7.3 Hood Hood shall be of aluminum, 22 B & S Gauge.

1 7.4 brackets Brackets shall be steel plate of Vs" minimum thick¬
ness.

17*5 Crank operator Crank operator shall be furnished for doors
exceeding 12' in width. Operator shall consist of a worm and bevel
drive mounted on bracket and an operating removable arm.

1 7.6 finish Aluminum surfaces shall be given not less than V 2 hour
anodic coating. Ferrous surfaces shall be given a shop coat of aluminum
paint.

17.7 guarantee Doors shall be guaranteed against defective
materials and workmanship for a period of one year.

optional materials
and accessories

* 1 7.8 removable mullion Removable Mulllon shall be of the
boxed-in frame type made of extruded aluminum, and containing
security curtain retaining groove. Mullion shall be provided with inside
mounted locking bolt.

*17.9 cylinder lock Bottom Bar shall be equipped with a centrally
located cylinder lock operating two opposite locking bolts mounted on in¬
side of bottom bar.

17.10 material Curtain and hood may be furnished in stainless
steel and Armco aluminized steel, type 2. Stainless steel slats shall be
22 U.S. gauge minimum, and aluminized steel shall be 24 U.S. gauge
minimum.

A patent pending

Walter Balfour & Co., Inc.

Mm l -v

IP^j

■ operation

maximum

height

opening

width

operation

o o

00 CO

up to 12'
12 / —18 #

push-up

crank

* large
openings

Openings over 18 feet wide shall be
provided with two doors separated
by a removable mullion to allow use
of full opening width when doors
are open.

■ coil

clearances

opening

coil

height

dimensions

up to 4'

4'—6'

10"

6'—8'

11"

installation clearances

■ types

push-up
type YNIO

face mounted

push-up
type YJIO

jamb mounted

crank
type YN30
face mounted

crank
type YJ30
jamb mounted

Of) grilles bring A

j elegance and protection

\ to openings |

push-up
type GNIO

push-up
type GJIO

push-up
type GN2Q

face mounted

jamb mounted

face mounted

Clearances [dimensions in inches]

opening

size

♦o 7' high
to 18' wide

3y 8

14%

to 10' high
to 18' wide

43/ 4

3Vs

16%

opening

size

to 7' high
to 16' wide

1 %

to IT high
to 16' wide

1 %

16%

not recommended above 110 sq. ft.

■ standard specifications

opening

size

to 7 # high
to 18' wide

4 Vs

14%

to 10' high
to 18' wide

43/4

16%

to 13' high
to 21' wide

43/4

18%

19.1 general Grilles shall be of the spiral link type, shall be
mounted (on the face of the wall) (between jambs) and shall be (push¬
up) (chain) (crank) (motor) operated. Grilles shall be as manufactured
by Walter Balfour & Co., Inc.

19.2 curtain Curtain shall consist of spiral steel links fastened
to flat steel bars and forming rolling connection with alternating
round bars. Self-aligning steel or malleable iron endlinks shall be
fastened to end of bars to retain curtain in the guides. Clear openings
between flat and round bars shall not exceed 114". Curtain bottom shall
have two steel angles.

19.3 Spring counterbalance Counterbalance shall be by means
of helical torsion springs housed in steel pipe and anchored to single
torsion rod provided with balancing wheel. Pipe deflection shall be
.03" per ft. maximum.

19.4 guides ond brackets Guides shall be of bent steel
shapes. Brackets shall be steel plate %" thick minimum.

19.5 hood Hood shall be galvanized sheet metal 24 U.S. gauge
minimum.

19.6 locking devices A five tumbler cylinder lock working
from either side shall be provided along with locking bars.

19.7 finish Curtains shall be galvanized. Non-galvanized ferrous
surfaces shall have a shop coat of paint.

19.8 guarantee Grilles shall be guaranteed against defective
materials and workmanship for a period of one year.

optional materials

Grille curtain may be furnished in aluminum or stainless steel.

Walter Balfour & Co., Inc

ALABAMA

ARKANSAS
COLORADO
CONNECTICUT
DIST. COLUMBIA
FLORIDA

GEORGIA

ILLINOIS

INDIANA

IOWA

KANSAS

KENTUCKY

LOUISIANA

MARYLAND

MASSACHUSETTS

MICHIGAN

MINNESOTA

MISSISSIPPI

MISSOURI

NEBRASKA
NEW JERSEY
NEW MEXICO
NEW YORK

NORTH CAROLINA
OHIO

OKLAHOMA

PENNSYLVANIA

RHODE ISLAND
SOUTH CAROLINA

TENNESSEE

TEXAS

VIRGINIA

W. VIRGINIA
WISCONSIN
PUERTO RICO

BIRMINGHAM (8)
MOBILE
LITTLE ROCK
DENVER (9)

NEW HAVEN
ARLINGTON, VA. (2)
DAYTONA BEACH
MIAMI (42)
ORLANDO
PENSACOLA
TALLAHASSEE
ATLANTA (3)
CHICAGO (8)

PEORIA
HAMMOND
INDIANAPOLIS (1)
SOUTH BEND (28)
DAVENPORT
WICHITA (1)
LOUISVILLE (2)

NEW ORLEANS (15)

BALTIMORE

BOSTON

DETROIT

GRAND RAPIDS

MINNEAPOLIS (22)

JACKSON

KANSAS CITY (11)

ST. LOUIS (17)
OMAHA (10)

NEWARK (4)
ALBUQUERQUE
BUFFALO (3)

NEW YORK
ROCHESTER (9)
SCHENECTADY (4)
CHARLOTTE
AKRON

CINCINNATI (10)

TOLEDO (2)

YOUNGSTOWN

OKLAHOMA CITY (4)

EASTON

HARRISBURG

MILTON

PHILADELPHIA (42)
PITTSBURGH (16)
SCRANTON
YORK

PROVIDENCE (7)
COLUMBIA
CHARLESTON
KNOXVILLE (20)
MEMPHIS (12)
NASHVILLE (9)

DALLAS (9)

HOUSTON (21)

SAN ANTONIO (2)
NORFOLK (10)
ROANOKE
DUNBAR

MILWAUKEE (12)

SAN JUAN (6)

AKV.nl I tCI URAL SPECIALTIES CO., INC.

UNDERWOOD BUILDERS SUPPLY CO

ARKANSAS BUILDERS SUPPLY CO

EDWARD E. DUSTIN

A. R. KIRSCHNER COMPANY

CRAWFORD DOOR SALES CORP. of WASH. D.C

R. E. GALL

A. B. BROWN

CLYDE C. CARPENTER

GULF COAST STEEL BUILDINGS. INC

W. S. LEE CO., INC.

WILLIAM E. McGILL & COMPANY
CONTINENTAL NU-STEEL METAL PROD. CO
LUCAS SALES COMPANY

STANDARD EQUIPMENT & SUPPLY CORPORATION
BARRISON & CLARKE, INC.

NELSON ENGINEERING SALES, INC
MIDWEST METALS CORP.

CHESTER L. ANDERSON COMPANY, INC.

THE EQUIPMENT & SPECIALTIES COMPANY INC
MATERIALS-SERVICE INC.

ROLLING DOOR SALES & REPAIR COMPANY
THE CONSTRUCTION SUPPLY COMPANY
FIRE DOORS, INC.

H. EDWARD BRUNHOFF, JR.

DONNELLY SALES, INC.

W. B. BOWERS

HOWARD & ARNOLD COMPANY
AUGUST COURT COMPANY
SIMPSON-GOODWIN COMPANY
MARVIN METAL PRODUCTS COMPANY
J. C. BALDRIDGE LUMBER COMPANY
A. O. STILWELL COMPANY, INC.

WALTER BALFOUR & COMPANY, INC.

McKEE DOOR SALES OF ROCHESTER
ERNEST A. BARBEAU
MAXSON-BETTS COMPANY
R. J. FLICKINGER COMPANY
DURBROW-OTTE ASSOCIATES, INC.

JOHN B. ROADHOUSE
SAUSE STRUCTURAL STEEL COMPANY
L. E. ACKER COMPANY
GENERAL SUPPLY COMPANY
DOORS, INC.

CONSTRUCTION SUPPLY & EQUIPMENT INC
HERBERT G. PITTS

ENGINEERED MATERIALS COMPANY
JOHN J. WEIS & SON, INC.

JACK HANISH & SON, INC
G. FRED SWANSON, INC
OWEN STEEL COMPANY, INC.

SOUTHEASTERN STEEL COMPANY
TENNESSEE STRUCTURAL PRODUCTS COMPANY
MODERN DOORS & WINDOWS, INC
VOLUNTEER STRUCTURES, INC
R. E. L. WHITTEN COMPANY
ASSOCIATED BUILDERS SPECIALTIES
THAD ZIEGLER GLASS COMPANY
WITHERS CLAY UTLEY, INC.

CATES BUILDING SPECIALTIES, INC.

WILLIAM EDWARD HORROCKS
BIERSACH & NIEDERMEYER COMPANY
AMERICAN AGENCIES

/uu Avenue H, Ensley

P. O. Box 1587

P. O. Box 2996

P. O. Box 4053

315 Whitney Avenue

1233 Jefferson Davis Highway

P. O. Box 67

3651 N. W. 46th Street

P. O. Box 2847

P. O. Box 127

P. O. Box 908

205 Red Rock Building

1248 South Ashland Avenue

1328 South Washington Street

534-536 Michigan Street

P. O. Box 5227

1612 Lincolnway West

P. O. Box 899

P. O. Box 2254

627 South Jackson Street

4100 Tchoupitoulas Street

620 Anneslie Road

P. O. Box 206, Norwood

P. O. Box 1097

P. O. Box 93-C

5116 - 35th Avenue, North

P. O. Box 2162

226 West 39th Street

1110 South Brentwood Blvd.

4403 Florence Blvd.

825 Summer Avenue
P. O. Box 454
991 Main Street
404 Oakland Street, Brooklyn
1292 East Main Street
84 Furman Street
P. O. Box 1716
1574 Akron—Peninsula
1426 Clay Street
1220 Madison Avenue
516 East Indianola Avenue
1809 West Main Street
620 Lehigh Drive
P. O. Box 1095
P. O. Box 71
6646 Guyer Avenue
306 Beverly Road
P. O. Box 1286
130 West Kurtz Avenue
618 Cranston Street
P. O. Box 694
P. O. Box 6373-A, Myers
P. O. Box 9008
P. O. Box 5161
4108 Dakota Avenue
P. O. Box 7171
P. O. Box 14112
P. O. Box 2537
424 West 21st Street
P. O. Box 2489
1332 Grosscup Avenue
1937 North Hubbard Street
P. O. Box 1216

olate 5-414

HEmlock
FRanklin
SKyline
LOcust
OTis t
CLinton
NEwton *
GArden ;
HEmlock 8
3

JAckson 5
CAnal 6
3

WEstmore 1
MEIrose 2
CEntral 2

HObart
JU 4
TWinbrook 5
DRexel 7
NOrwood 7
PRescott 7-9090 & 6
GLendale 2
JU 8
FL 3
PLaza 3
PArkview 1
PLeasant
HUmboldt .

3581

5397

5301

9697

5422

1421

5011

0946

9689

2100

7644

5472

8547

3060

9388

8245

5244

9354

7114

3962

6747

3820

0929

4808

6086

4743

3980

-2916

7-500

•3200

( 22 )

Rd.

GRant 650<
EVergreen 3-322C
CUIver 171C
FRanklin 4-703C
EDison 4-5506
WAInut 3-9737
PArkway 1 -0066
CHerry 1-8456
STerling 8-5049
CEntral 2-3771
EAston 8-7261
JOrdan 4-2057
779

SAratoga 7-1919
LOcust 1-0744
Dl 7-4825
YOrk 8-1481 & 2-6335
GAspee 1 -0788
ALpine 6-4951
RAymond 2-8876
7-2507
GL 8-3332
CYpress 7-5358
EMerson 3-2531
Mission 4-5471
CApitol 6-2218
MAdison 5-6719
Diamond 3-2473
POplar 8-2619
FRanklin 4-4000

Digitized by:

INTERNATIONAL

ASSOCIATION

FOR

PRESERVATION

TECHNOLOGY,

INTERNATIONAL

www .a pt i.o rg

BUILDING

TECHNOLOGY

HERITAGE

LIBRARY

https://archive.org/details/buildinqtechnologvheritagelibrary

From the collection of:

Carol J. Dyson, AIA

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